Electric piano



FIG. 1 is a perspective view of an electric piano showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken line portions of the electric piano in FIGS. 1-6 represent unclaimed portions of the claimed design and form no part thereof. 

CLAIM The ornamental design for an electric piano, as shown and described. 